Pline Align

[Anonymous]

Why is it that when I try to define an alignment from a polyline that it
sometimes starts from the opposite end of where I started the Pline? I can
explode and try again but to no avail.... Only seems to happen on some
dwg's. I can define from objects and it stations out just fine.

Matt
LDD3

[Anonymous]

depend on the direction the pline is drawn. type pe, select the pline and
type e. the x shows the first visible vertex of the pline, type n and the
direction of the pline will become obvious.

Steltman Software
Easy to Use Productivity Tools for autodesk Land Desktop
web http://www.rsteltman.com/


"Matt" wrote in message
news:76F5B607F4030F2FD98A736BFBE0C4A0@in.WebX.maYIadrTaRb...
> Why is it that when I try to define an alignment from a polyline that it
> sometimes starts from the opposite end of where I started the Pline? I
can
> explode and try again but to no avail.... Only seems to happen on some
> dwg's. I can define from objects and it stations out just fine.
>
> Matt
> LDD3
>
>

[Anonymous]

If I want to reverse the direction of a pline (like to reverse an
alignment), I explode the polyline, go to the first segment of the polyline,
and reverse it using the "flip direction" command under the LDD "labels"
menu. That should place the segment in the correct direction, then,
redefine as polyline then whatever lines/curves you attach to it with pedit
will be attached with the same direction.

I use this method alot when defining alignments. If the alignment is
"reversed" from what I want, I use this method to change the direction. I
use the "flip direction" command enough that I included it in my custom
button toolbar.

I also have linetypes with text included. The command also works great to
flip you lines with text inside to show with the correct orientation (i.e.
text right side up).

[Anonymous]

Matt,

This is the main reason I don't use polylines to define my alignment. I'll
draw the alignment as a polyline and then, when I want to define it, I'll
explode it and define the alignment by objects.

Brian

"Matt" wrote in message
news:76F5B607F4030F2FD98A736BFBE0C4A0@in.WebX.maYIadrTaRb...
> Why is it that when I try to define an alignment from a polyline that it
> sometimes starts from the opposite end of where I started the Pline? I
can
> explode and try again but to no avail.... Only seems to happen on some
> dwg's. I can define from objects and it stations out just fine.
>
> Matt
> LDD3
>
>

[Anonymous]

Hi,

A far easier (and better) method is to explode the polyline and define the
Alignment from objects.

All you need to do is zoom close enough to the end where you want to start
so that you can select the first object, select the first object at its
starting end and then type "all" when asked to select objects. Unless you
have an ambiguous (more than 2 objects meeting) junction along the objects,
the software can sort out which objects to join more quickly than you can.

--


Laurie Comerford
CADApps
www.cadapps.com.au


"Mike Holmes" wrote in message
news:3157DD0C3965984E0BC1748D644FDAAB@in.WebX.maYIadrTaRb...
> If I want to reverse the direction of a pline (like to reverse an
> alignment), I explode the polyline, go to the first segment of the
polyline,
> and reverse it using the "flip direction" command under the LDD "labels"
> menu. That should place the segment in the correct direction, then,
> redefine as polyline then whatever lines/curves you attach to it with
pedit
> will be attached with the same direction.
>
> I use this method alot when defining alignments. If the alignment is
> "reversed" from what I want, I use this method to change the direction. I
> use the "flip direction" command enough that I included it in my custom
> button toolbar.
>
> I also have linetypes with text included. The command also works great to
> flip you lines with text inside to show with the correct orientation (i.e.
> text right side up).
>
>

[Anonymous]

Laurie Comerford wrote:
> Hi,
>
> A far easier (and better) method is to explode the polyline and
> define the Alignment from objects.
>
Just one more observation: with long and complicated alignments
particularly, it is chancy to construct the various curves and lines
with perfect connections. I have fallen into the habit of joining all of
them, just to be sure they do connect. Then I explode and go ahead. The
labor of picking all elements one at a time can be reduced by isolating
the layer and windowing.

rs

[Anonymous]

Matt wrote:
> Why is it that when I try to define an alignment from a polyline that
> it sometimes starts from the opposite end of where I started the
> Pline? I can explode and try again but to no avail.... Only seems to
> happen on some dwg's. I can define from objects and it stations out
> just fine.
>
> Matt
> LDD3

As the above oracles said, 'tis better to work with individual objects.
However, if you insist, use a linetype that indicates direction. If it
is reversed apply a pline reverse routine such as available from
DotSoft.

rs

[Anonymous]

It may be easier, but I don't think it's better. I guess all of the
following posts all seem to agree with you though, so if you decide better
on the basis of votes, you stand on the moral high-ground here.

[Anonymous]

And even an easier and faster way!

Draw a PLine from somewhere away from the bad Pline and then snap it to the end that you want to be the begining. Next use the Pedit command and pick the new Pline and joint it to the old (bad) pline. Now just use the trim command and trim this new end off! That's it!

Now the old Pline has a new end, right where you want it.

Bill Neuhauser P.E.

[Anonymous]

Hi Mike,

I don't think I've ever worried much about votes, the define by objects is
better because it is completely reliable every time. The Define by
polyline, isn't and that what leads to discussions like this.


"Mike Holmes" wrote in message
news:33BB62C3AB40C1988881B3CFAAB2C639@in.WebX.maYIadrTaRb...
> It may be easier, but I don't think it's better. I guess all of the
> following posts all seem to agree with you though, so if you decide better
> on the basis of votes, you stand on the moral high-ground here.
>
>

[Anonymous]

No way, define by polyline is the best. It only takes the first time to
realize which way you need to draw the polyline. I'm not going to pick
2000+ feet of entities when I can pick once.
"Mike Holmes" wrote in message
news:33BB62C3AB40C1988881B3CFAAB2C639@in.WebX.maYIadrTaRb...
> It may be easier, but I don't think it's better. I guess all of the
> following posts all seem to agree with you though, so if you decide better
> on the basis of votes, you stand on the moral high-ground here.
>
>

[Anonymous]

Or just use BF (break first), one less step then
the trim command.

style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

"billneu" <
href="mailto:bill.n@writme.com">bill.n@writme.com> wrote in message
href="news:f182424.6@WebX.maYIadrTaRb">news:f182424.6@WebX.maYIadrTaRb...

And
even an easier and faster way!

Draw a PLine from somewhere away from the bad Pline and then snap it to the
end that you want to be the begining. Next use the Pedit command and pick the
new Pline and joint it to the old (bad) pline. Now just use the trim command
and trim this new end off! That's it!

Now the old Pline has a new end, right where you want it.

Bill Neuhauser P.E.

[Anonymous]

The only way to do curves is with polylines, how do you do a curve
otherwise?
"TCEBob" wrote in message
news:793B80C6241DF121AA88B7B209ED907F@in.WebX.maYIadrTaRb...
> Laurie Comerford wrote:
> > Hi,
> >
> > A far easier (and better) method is to explode the polyline and
> > define the Alignment from objects.
> >
> Just one more observation: with long and complicated alignments
> particularly, it is chancy to construct the various curves and lines
> with perfect connections. I have fallen into the habit of joining all of
> them, just to be sure they do connect. Then I explode and go ahead. The
> labor of picking all elements one at a time can be reduced by isolating
> the layer and windowing.
>
> rs
>
>
>

[Anonymous]

I guess I just like to get the job done quicker. Too many steps involved in
the entity method.
"TCEBob" wrote in message
news:793B80C6241DF121AA88B7B209ED907F@in.WebX.maYIadrTaRb...
> Laurie Comerford wrote:
> > Hi,
> >
> > A far easier (and better) method is to explode the polyline and
> > define the Alignment from objects.
> >
> Just one more observation: with long and complicated alignments
> particularly, it is chancy to construct the various curves and lines
> with perfect connections. I have fallen into the habit of joining all of
> them, just to be sure they do connect. Then I explode and go ahead. The
> labor of picking all elements one at a time can be reduced by isolating
> the layer and windowing.
>
> rs
>
>
>

[Anonymous]

If the "only" way to do curves are with plines, then I must have been doing
something wrong all these years...

If that is the way it is done, how do you keep them tangent?

"landDesigner" wrote in message
news:E0E5662553D80332E62DD4D40B9E743D@in.WebX.maYIadrTaRb...
> The only way to do curves is with polylines, how do you do a curve
> otherwise?

[Anonymous]

Included in Alignment Tools is a routine to reverse, rename,
restation,extend or change description. Alignment Tools is part of the Road
Tools suite of routine that enhances Civil/Design for Road Designers.
Download the FREE 30 day fully functioning evaluation version
http://www.rsteltman.com/


"Matt" wrote in message
news:76F5B607F4030F2FD98A736BFBE0C4A0@in.WebX.maYIadrTaRb...
> Why is it that when I try to define an alignment from a polyline that it
> sometimes starts from the opposite end of where I started the Pline? I
can
> explode and try again but to no avail.... Only seems to happen on some
> dwg's. I can define from objects and it stations out just fine.
>
> Matt
> LDD3
>
>

[Anonymous]

landDesigner wrote:
> I guess I just like to get the job done quicker. Too many steps
> involved in the entity method.
If you construct the line with polyline "arc" and "line" commands you
need to know in detail the desired geometry. I prefer lines and fillets,
for the flexibility of design. Of course one could also use the line and
curve options in cogo.

rs

[Anonymous]

No one has mentioned the fact that polyline alignments have been known to
cause drawings to become corrupted. This may have been repaired in the last
5 or 6 "upgrades", but I don't take any chances. If you have Express Tools,
just isolate the "lines", pick, and restore. Takes about 5 seconds. I am
under Laurie's column.


"Robert Steltman" wrote in message
news:1BE6C1F538C61EC59B73A72953D4AEA5@in.WebX.maYIadrTaRb...
| Included in Alignment Tools is a routine to reverse, rename,
| restation,extend or change description. Alignment Tools is part of the
Road
| Tools suite of routine that enhances Civil/Design for Road Designers.
| Download the FREE 30 day fully functioning evaluation version
| http://www.rsteltman.com/
|
|
| "Matt" wrote in message
| news:76F5B607F4030F2FD98A736BFBE0C4A0@in.WebX.maYIadrTaRb...
| > Why is it that when I try to define an alignment from a polyline that it
| > sometimes starts from the opposite end of where I started the Pline? I
| can
| > explode and try again but to no avail.... Only seems to happen on some
| > dwg's. I can define from objects and it stations out just fine.
| >
| > Matt
| > LDD3
| >
| >
|
|

[Anonymous]

Yes, you can draw curves a number of different ways but in order to use a
curved alignment in pipeworks you need to use polylines. How else do you do
it? Please enlighten me.
TIA
"Adam Dew" wrote in message
news:0B7F0398DA16947832C7A4EA6D57C790@in.WebX.maYIadrTaRb...
> If the "only" way to do curves are with plines, then I must have been
doing
> something wrong all these years...
>
> If that is the way it is done, how do you keep them tangent?
>
> "landDesigner" wrote in message
> news:E0E5662553D80332E62DD4D40B9E743D@in.WebX.maYIadrTaRb...
> > The only way to do curves is with polylines, how do you do a curve
> > otherwise?
>
>

[Anonymous]

I do not have curved pipe runs. My pipe runs go from inlet to inlet, or
manhole to manhole.
If my pipe run is related to the center of a road right-of-way, I use the
alignment of the r/w. If I must make an alignment along the center of the
pipe, I do not use curves but straight "lines". I do not use plines. I
simply isolate the lines and created the alignment. You do not "need" to use
polylines. But if that is the way that you prefer; that is quite fiine. Ask
10 people and you will get at least 5 different ways of doing it. I am with
Laurie and TCEBob and whoever else "prefers" to use lines and arcs.
That is my "enlightend" opinion. And you know what they say about them .....
LOL


"landDesigner" wrote in message
news:2AD2BE0D59E5BAD7B7AC994B13EFAAA6@in.WebX.maYIadrTaRb...
> Yes, you can draw curves a number of different ways but in order to use a
> curved alignment in pipeworks you need to use polylines. How else do you
do
> it? Please enlighten me.
> TIA
> "Adam Dew" wrote in message
> news:0B7F0398DA16947832C7A4EA6D57C790@in.WebX.maYIadrTaRb...
> > If the "only" way to do curves are with plines, then I must have been
> doing
> > something wrong all these years...
> >
> > If that is the way it is done, how do you keep them tangent?
> >
> > "landDesigner" wrote in message
> > news:E0E5662553D80332E62DD4D40B9E743D@in.WebX.maYIadrTaRb...
> > > The only way to do curves is with polylines, how do you do a curve
> > > otherwise?
> >
> >
>
>